I work a bit with antler.
here are some things you can do to treat your antler
If you have the gear the best thing you can do is stabilize it in a
polymer. A 2 part mix epoxy or fiberglass resin with get into all
the holes and cracks. finish your jewellery and then put it in a
small container with the resin and then put it in your vacuum
chamber for about 5 min. take it out let it drain and wipe it with a
bit of acetone then let sit for 24 hours. afterward you can re
polish sand and rework as needed.
the low tech way and the most environmentally friendly way is to
simply get an old pot and some bee wax. heat up the beeswax in the
pot until melted. be sure not to put to much heat under it you dont
want it to burn or catch fire. the double boiler method works great
then just simmer your antler jewellery in the wax for 15 min or so.
take the ring out of the wax and wipe of the excess. let cool and
harden then buff with a clean white cotton buff.
I have used both these methods with great success, if the jewellery
is not going to receive to much in the way of stress, the beeswax
method is my preference.